Quality of chronic disease care in general practice: The development and validation of a provider interview tool

Judith Proudfoot, Upali W. Jayasinghe, Fernando Infante, Justin Beilby, Cheryl Amoroso, Gawaine Davies, Jane Grimm, Christine Holton, Tanya Bubner, Mark Harris

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Abstract

Background. This article describes the development and psychometric evaluation of an interview instrument to assess provider-reported quality of general practice care for patients with diabetes, cardiovascular disease and asthma - the Australian General Practice Clinical Care Interview (GPCCI). Methods. We administered the GPCCI to 28 general practitioners (family physicians) in 10 general practices. We conducted an item analysis and assessed the internal consistency of the instrument. We next assessed the quality of care recorded in the medical records of 462 of the general practitioners' patients with Type 2 diabetes, ischaemic heart disease/hypertension and/or moderate to severe asthma. This was then compared with results of the GPCCI for each general practice. Results. Good internal consistency was found for the overall GPCCI (Cronbach's alpha = 0.75). As far as the separate sub-scales were concerned, diabetes had good internal consistency (0.76) but the internal consistency of the heart disease and asthma subscales was not strong (0.49 and 0.16 respectively). There was high inter-rater reliability of the adjusted scores of data extracted from patients' medical notes for each of the three conditions. Correlations of the overall GPCCI and patients' medical notes audit, combined across the three conditions and aggregated to practice level, showed that a strong relationship (r = 0.84, p = 0.003) existed between the two indices of clinical care. Conclusion. This study suggests that the GPCCI has good internal consistency and concurrent validity with patients' medical records in Australian general practice and warrants further evaluation of its properties, validity and utility.

Original languageEnglish
Article number21
JournalBMC Family Practice
Volume8
DOIs
Publication statusPublished - 10 May 2007
Externally publishedYes

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Proudfoot, J., Jayasinghe, U. W., Infante, F., Beilby, J., Amoroso, C., Davies, G., Grimm, J., Holton, C., Bubner, T., & Harris, M. (2007). Quality of chronic disease care in general practice: The development and validation of a provider interview tool. BMC Family Practice, 8, [21]. https://doi.org/10.1186/1471-2296-8-21